Over the last couple of seasons, the Green Bay Packers have produced the two youngest playoff teams of the past four-and-a-half decades. “We’re not a young team no more,” three-time Pro Bowl defensive lineman Kenny Clark said Thursday after the Packers’ second training camp workout. Clark’s point is debatable, because Green Bay still has plenty of youth. The only Packers in their 30s are 33-year-old kicker Brandon McManus and 30-year-old long snapper Matt Orzech, though Clark and offensive lineman Elgton Jenkins will both reach that milestone this season.